During the Korean War, he was recalled to active military duty in March 1951 and was assigned to the 2d Bombardment Wing, Hunter Air Force Base, Ga., as a deputy squadron commander, and later served at Barksdale Air Force, Base, La., and on Okinawa. In October 1954 he began a four-year assignment with the Director of Procurement and Production, Deputy Chief of Staff, Materiel, Headquarters U.S. Air Force, as chief of the Bombardment Branch. From August 1958 until July 1959, he was a student at the Air War College, Maxwell Air Force Base, Ala.
After graduation, he returned to Strategic Air Command as vice commander and later became commander of the 341st Bombardment Wing at Dyess Air Force Base, Texas. In June 1961 he became vice commander of the 96th Bombardment Wing at Dyess. In June 1962 he was assigned to the Office of the Inspector General, SAC, Offutt Air Force Base, Neb. He became deputy commander of SAC's 3d Air Division at Andersen Air Force Base, Guam, in June 1965. During that assignment, he flew combat missions in addition to participating in command and control of B-52 and KC-135 aircraft operations in support of Southeast Asia operations.
In July 1966 General Holland returned to the United States as commander of the 7th Bombardment Wing, Carswell Air Force Base, Texas, and in July 1967 became commander of the 42d Air Division, Blytheville Air Force Base, Ark. In July 1968 he was assigned as commander of the 810th Strategic Aerospace Division, Minot Air Force Base, N.D., and in August 1969 became vice commander of the Warner Robins Air Materiel Area at Robins Air Force Base, Ga.
General Holland was transferred to the Republic of Vietnam in November 1971 and assumed duties as deputy chief of staff, logistics, Headquarters Seventh Air Force, at Tan Son Nhut Airfield, and in September 1972 became deputy commander of the Seventh Air Force. He became deputy chief of staff for logistics, Headquarters Pacific Air Forces, at Hickam Air Force Base, Hawaii, in February 1973.
In August 1974 General Holland was reassigned as commander of Warner Robins Air Logistics Center, AFLC, at Robins Air Force Base, Ga.
General Holland reverted to inactive duty in June 1945 and resumed his college education. He was graduated from Emory University, Emory, Ga., in 1947, with a bachelor of arts degree in business administration, became personnel manager for Scripto Manufacturing Co., and later joined the sales department of the Westinghouse Electric Supply Co.